Adaptive Thresholding for Signal De-Noising for Power-Line Communications

Yu Min HWANG  Gyeong Hyeon CHA  Jong Kwan SEO  Jae-Jo LEE  Jin Young KIM  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E100-A   No.12   pp.3041-3044
Publication Date: 2017/12/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E100.A.3041
Type of Manuscript: LETTER
Category: Digital Signal Processing
power-line communication,  burst noise,  signal de-noising,  wavelet transform,  adaptive thresholding,  

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This paper proposes a novel wavelet de-noising scheme regarding the existing burst noises that consist of background and impulsive noises in power-line communications. The proposed de-noising scheme employs multi-level threshold functions to efficiently and adaptively reduce the given burst noises. The experiment results show that the proposed de-noising scheme significantly outperformed the conventional schemes.